Improvement in hames-fasteners



il TED 'ra s ALVAH SWEETLAND, OF SYRAOUS, NEW YORK.

IMPROVEMENT IN HAMES-FASTENERS.

Specification forming part of Letters Patent No. 115,908, dated June 13,1871 To all 'whom it may conce-rn:

Beit known that I, ALvAH SWEETLAND, of Syracuse, in the county oi'Onondaga and State oi" New York, have invented a new and usefulImprovement in Haine-Locks; and I do hereby declare that the followingis a full, clear, and exact description thereof, which will enable'others to make and use the same, reference being had to theaccompanying drawing forming part -of this specification, in which-Figure l shows the parts in position for hooking, and Fig. 2 shows thesame in the hooked and locked position. Figs. 3 and 4 are detail views.t

Similar letters of reference indicate like parts in the several iigures.

This invention consists in attaching to one of the haines a linkcarrying a slotted lever, which engages with a hooked bar attached tothe opposite hanie, the hooked bar having a series of lugs orprojections, and the lever having side rails that rit over said lugswith a degree of elasticity, so that the lever is locked in positionwhen closed and the liability of the parts to become disengaged, whenrelieved of strain, thereby obviated; and the invention also consists inattaching the parts to the llames by means of hooks, the throats ofwhich are each iilled up by a block, secured in place by a set-screw, sothat the parts are readily applied, or changed to another harness, ifdosired, as hereinafter more fully described.

In the accompanying drawing, A is the link. B is the slotted lever, andGis the serrated or hooked bar. The bar C is made with a series ofhooks, D, as shown-in Fig. 1, and each hook is provided with a nib orlug, c, on each oi' its sides. The lever B terminates at one end withtwo hooks, b b, Fig. 1, which engage with any one pair of the nibs c tocarry the rivet or cross-bar a over one of said hooks, D, as rshown inFig. 2. The lever B is made with two side rails, e e, Fig.'4, and as thelever is sprung into the closed position these rails e e, having adegree of elasticity, are sprung over one pair of the nibs c, andembrace them with a sufficient hold to securely lock the parts in theclosed position, so that when going down hill, or at such time as thelook may be relieved of strain, the lever B cannot drop by its ownweight and openy the lock. The hooks by which the parts are attached totheir haines have each a block, F, fitted into its throat, and held inplace in a removable manner by a setscrew, f, by'which the lock iseasily applied, or removed to another harness at any time. A rivet canbe used in place of the screw f. l, however, consider the screw aspreferable, as it adds but slightly to the cost, and is removed with theleast trouble.

Having thus described my invention, what I claim, and desire to secureby Letters Pat ent, is-

1. The link A, closing-lever B, and hooked bar O, the said bar G havingnibs or projections c c, and the lever B having rails c e, that embracesaid projections c to lock the lever in the closed position, allconstructed and arranged substantially as specicd.

2. The detachable throat-blocks F f, in connection with the link A,lever B, and bar C, as and for the purpose described.

The above specification of my invention signed by me this 30th day ofMarch, 1871.

ALVAH SWEETLAND.

Witnesses:

1i. B. STRONG, F. A. MoRLnY.

